EP2428694A2 - Ensemble formant couvercle d'embrayage - Google Patents

Ensemble formant couvercle d'embrayage Download PDF

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Publication number
EP2428694A2
EP2428694A2 EP11176002A EP11176002A EP2428694A2 EP 2428694 A2 EP2428694 A2 EP 2428694A2 EP 11176002 A EP11176002 A EP 11176002A EP 11176002 A EP11176002 A EP 11176002A EP 2428694 A2 EP2428694 A2 EP 2428694A2
Authority
EP
European Patent Office
Prior art keywords
portions
clutch cover
clutch
cover assembly
pivot ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11176002A
Other languages
German (de)
English (en)
Other versions
EP2428694B1 (fr
EP2428694A3 (fr
Inventor
Tokiyoshi Kida
Daisuke Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Publication of EP2428694A2 publication Critical patent/EP2428694A2/fr
Publication of EP2428694A3 publication Critical patent/EP2428694A3/fr
Application granted granted Critical
Publication of EP2428694B1 publication Critical patent/EP2428694B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/583—Diaphragm-springs, e.g. Belleville
    • F16D13/585—Arrangements or details relating to the mounting or support of the diaphragm on the clutch on the clutch cover or the pressure plate

Definitions

  • This disclosure generally relates to a clutch cover assembly.
  • a vehicle is equipped with a clutch device on a power transfer path in between an engine and a transmission for a purpose of cutting off the rotational power from an engine to a transmission on situations for example at the engine start or when changing gears.
  • the clutch device realizes a power transfer and a power disconnection between the engine and the transmission by manual operations (using a hand, a foot, or means alike) of operation mechanisms for example clutch lever or clutch pedal which transfer a clutch operational force by means of hydraulic mechanisms, link mechanisms or similar.
  • the clutch device equipped with a clutch disc in between a flywheel and a clutch pressure plate, transfers the power from the engine to the transmission by pressing the clutch pressure plate to the clutch disc, and disconnects the power by releasing pressure on the clutch disc by separating the clutch pressure plate from the clutch disc.
  • the clutch device As a mechanism to press the clutch pressure plate to the clutch disc and to release the clutch pressure plate from the clutch disc, the clutch device includes a clutch cover assembly within which pivotally supports a diaphragm spring.
  • the clutch cover assembly which rotates together with the flywheel as one unit, is structured so that an elastic force of the diaphragm spring enables pressing of the clutch pressure plate to the flywheel related members.
  • a known clutch cover assembly disclosed in JPH6-33948A includes two pivot rings sandwiching a diaphragm spring at multiple bent portions appropriately positioned circumferentially on a clutch cover.
  • the diaphragm spring functions as a lever
  • the pivot rings function as fulcrums and as members for receiving a reaction force generated by a load at a frictional face.
  • This clutch cover assembly retains the pivot rings and the diaphragm spring, which is sandwiched between the pivot rings from its both sides in axial direction, by clinching bending portions (or tabs) extended from the clutch cover around the pivot rings.
  • An arrangement of structural members disclosed by the known clutch cover assembly results in a clutch cover being dimensionally large in an axial direction at the fulcrum portions of the diaphragm spring because the known clutch cover serially arranges the structural members in axial direction in an order of the clutch cover, one of the pivot rings, the diaphragm spring, another pivot ring, and the clinched tab.
  • the known clutch cover assembly results in the clutch cover being dimensionally large in the axial direction, also because the diaphragm spring is not the closest member to the engine (i.e., to the clutch pressure plate) at the fulcrum portions of the diaphragm spring.
  • the known clutch cover assembly results in the clutch cover being dimensionally large in the axial direction because another pivot ring and the clinched tab are positioned at a closer position to the engine in relation to the diaphragm spring (i.e., to the clutch pressure plate) at the fulcrum portions of the diaphragm spring.
  • the known clutch cover assembly also results in a cost increase due to having a large number of components by including two pivot rings sandwiching the diaphragm spring at the fulcrum portion of the diaphragm spring.
  • a clutch cover assembly includes a ring shaped pivot ring, a clutch cover which includes an annular flange portion and multiple tab portions that extend from an inner periphery of the flange portion for retaining the pivot ring at the tab portions, and a diaphragm spring which includes an annularly formed annular portion, multiple lever portions extending inwardly in radial direction from an inner periphery of the annular portion at positions located between the tab portions. Each projection engages to the pivot ring for pivoting each lever portion at a fulcrum portion on the lever portion.
  • the clutch cover assembly according to the first embodiment includes one pivot ring for reducing a dimension in axial direction and reducing a cost by including a small number of components.
  • the diaphragm spring biases a clutch pressure plate at a point of action on the annular portion of the diaphragm spring in the direction for detaching the clutch pressure plate from the clutch cover, and the annular portion is positioned at the clutch pressure plate side of the pivot ring.
  • each tab portion includes at least one clinching portion bent at a middle portion of the clinching portion to an axial direction toward the clutch pressure plate and bent at an end portion of the clinching portion to outwardly in a radial direction.
  • Each clinching portion when clinched, retains the pivot ring at each tab portion, and each clinching portion and the annular portion are positioned next to each other on an axially perpendicular plane that is at the clutch pressure plate side of the pivot ring.
  • each projections extends from each lever portion outwardly in a radial direction at a location that does not conflict with each tab portion, and the pivot ring is axially positioned in between each fulcrum portion and each projection.
  • the fulcrum portions are bent stepwise, and the pivot ring is positioned at an outer side in the radial direction of the step of the fulcrum portions.
  • the step form at the fulcrum portions is structurally effective for positioning the annular portion of the diaphragm spring at the clutch pressure plate side of the pivot ring, which results in a clutch cover assembly being dimensionally small in the axial direction at the fulcrum portions of the diaphragm spring.
  • each lever portion includes two projections, and each of the two projections on each lever portion extends outward in the radial direction at circumferentially off location to both sides from the fulcrum portion on each lever portion.
  • each projection extends inward in the radial direction from an inner circumference edge of the annular portion between the lever portion at a location that does not conflict with each tab portion, and the pivot ring is positioned in between each fulcrum portion and each projection axially.
  • each projection inward in a radial direction from the inner circumference edge of the annular portion between the lever portions and positioning each projection at a position that does not conflict with each tab portion are effective in positioning each clinching portion on each tab portion and the annular portion of the diaphragm spring next to each other on an axially perpendicular plane, which results in a clutch cover assembly being dimensionally small in the axial direction at the fulcrum portions of the diaphragm spring.
  • the fulcrum portions are bent stepwise, and the pivot ring is positioned at an inner side in the radial direction of the level difference of the fulcrum portions.
  • the step form at the fulcrum portions is structurally effective for positioning the annular portion of the diaphragm spring at the clutch pressure plate side of the pivot ring, which results in a clutch cover assembly being dimensionally small in the axial direction at the fulcrum portions of the diaphragm spring.
  • projections are at positions that overlap with the tab portions when viewed in the axial direction, and each clinching portion on each tab portion is at circumferentially off location at a position that does not conflict with each projection, when clinched.
  • Positioning projections at a position that overlap with the tab portion when viewed in the axial direction and positioning each clinching portion, when clinched, at circumferentially off location that does not conflict with projections results in positioning each clinching portion on each tab portion and the annular portion of the diaphragm spring next to each other on an axially perpendicular plane, which results in a clutch cover assembly being dimensionally small in the axial direction at the fulcrum portions of the diaphragm spring.
  • each clinching portion extends toward the opposite direction to the direction the circumferentially positioned proj ections.
  • each clinching portion Positioning each clinching portion to extend toward the opposite direction to the direction the circumferentially positioned projections extends to, enables the positioning of each clinching portion on each tab portion and the annular portion of the diaphragm spring next to each other on an axially perpendicular plane, which results in a clutch cover assembly dimensionally small in the axial direction at the fulcrum portions of the diaphragm spring.
  • Fig. 1 is a plan view of a typical configuration of a clutch cover assembly according to a first embodiment disclosed here viewed from an axial direction.
  • Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1 for the typical configuration of the clutch cover assembly according to the first embodiment disclosed here.
  • Fig. 3 is a plan view of a clutch cover for the typical configuration of the clutch cover assembly according to the first embodiment disclosed here viewed from an arrow Y indicated in Fig. 2 .
  • Fig. 4 is a plan view of a diaphragm spring for the typical configuration of the clutch cover assembly according to the first embodiment disclosed here viewed from the arrow Y indicated in Fig. 2 .
  • Fig. 5 is a plan view of a typical configuration of a clutch cover assembly according to a second embodiment disclosed here viewed from an axial direction.
  • Fig. 6 is a cross-sectional view taken along line XI-XI in Fig. 5 for the typical configuration of the clutch cover assembly according to the second embodiment disclosed here.
  • Fig. 7 is a plan view of a clutch cover for the typical configuration of the clutch cover assembly according to the second embodiment disclosed here viewed from an arrow Y indicated in Fig. 6 .
  • Fig. 8 is a plan of a diaphragm spring for the typical configuration of the clutch cover assembly according to the second embodiment disclosed here viewed from the arrow Y indicated in Fig. 6 .
  • a clutch cover assembly includes a pivot ring 30 (inclusive of substantially ring shaped and C-ring shaped) (in Fig. 1 , Fig. 2 , Fig. 5 and Fig. 6 ), a clutch cover 10 (in Fig. 1 , Fig. 2 and Fig. 3 and 50 in Fig. 5 , Fig. 6 and Fig. 7 ), which includes an annular flange portion 13 (in Fig. 1 , Fig. 2 and Fig. 3 and 53 in Fig. 5 , Fig. 6 and Fig. 7 ) and multiple tab portions 13a (in Fig. 1 , Fig. 2 and Fig.
  • the clutch cover assembly according to a first embodiment is explained referring to Figs. 1 to 4 .
  • the clutch cover assembly is an assembly in which the diaphragm spring 20 is pivotally supported by the clutch cover 10.
  • the clutch cover assembly transfers a power from an engine to a transmission by pressing a clutch pressure plate 40 to the clutch disc, and disconnects the power by releasing a pressure on the clutch disc by separating the clutch disc from the clutch pressure plate 40.
  • the clutch cover assembly includes the clutch cover 10, the diaphragm spring 20 and the pivot ring 30 as its components.
  • the clutch cover 10 is an annular member.
  • the clutch cover 10 includes a cylinder portion 12 and an annular outer flange portion 11 that extend outward in a radial direction from one end of the cylinder portion 12, and the annular inner flange portion 13 that extends inward in a radial direction from the other end of the cylinder portion 12.
  • the outer flange portion 11 includes multiple through hole portions 11a for a purpose of retaining the clutch cover 10 to a flywheel by fixing the clutch cover 10 and the flywheel together at a predetermined position by rivets, bolts or similar fixing means.
  • the inner flange portion 13 includes multiple tab portions 13a extending from predetermined positions of an inner periphery of the inner flange portion 13.
  • the tab portions 13a retain the pivot ring 30, which pivotally support the diaphragm spring 20, to the clutch cover 10.
  • Each tab portion 13a when viewed in an axial direction, is at a position that overlaps within a gap area between the lever portions 22 on the diaphragm spring 20.
  • each tab portion 13a is located at a circumferentially off location from the projections 22a or 22b on the diaphragm spring 20 where each clinching portions 13b on each tab portion 13a, when clinched, does not conflict with the projections 22a or 22b on the diaphragm spring 20.
  • Each tab portion 13a is bent at its midway portion to an axial direction toward the clutch pressure plate 40 (in Fig.
  • each midway portion of the tab portion 13a which is bent to an axial direction toward the clutch pressure plate 40, is positioned at an inner periphery side of the pivot ring 30 thus restraining the radial direction movement of the pivot ring 30.
  • Each end portion of the tab portion 13a bent to head outward in a radial direction becomes the clinching portion 13b.
  • Each clinching portion 13b bent around the pivot ring 30 restrains the axial direction movement of the pivot ring 30 by pressing the pivot ring 30 toward a root portion of each tab portion 13a.
  • the diaphragm spring 20 is an annular elastic member that functions as a lever to provide pressure to the clutch pressure plate 40 (in Fig. 2 ) to make connection for the flywheel (i.e., to provide pressure toward left in Fig. 2 ).
  • the diaphragm spring 20 includes multiple lever portions 22 extending inwardly in a radial direction from an inner periphery of the annular portion 21.
  • the annular portion 21 is an annular member that functions as a coned disc spring. The annular portion 21 is slanted so that its outer periphery portion is positioned closer to the clutch pressure plate 40 (in Fig.
  • the outer periphery portion of the annular portion 21 is in close contact (pressure contact) with projecting portions 41 (in Fig. 2 ), which are formed on the clutch pressure plate 40 (in Fig. 2 ), to become points of action for the diaphragm spring 20.
  • the annular portion 21 is positioned at the clutch pressure plate 40 side (in Fig. 2 ) of the pivot ring 30 (i.e., the annular portion 21 is positioned leftward of the pivot ring 30 in Fig. 2 ).
  • the annular portion 21 and the clinching portions 13b of the tab portions 13a are positioned next to each other on an axially perpendicular plane.
  • the annular portion 21 is positioned at the transmission side of the pivot ring 30 (i.e., a location of the annular portion 21 is rightward of the pivot ring 30 in Fig. 2 ).
  • Each lever portion 22 positioned circumferentially next to each other on the diaphragm spring 20 is separated from each other.
  • Each lever portion 22 includes the fulcrum portion 23 at its root portion that serves as a fulcrum for the diaphragm spring 20.
  • the fulcrum portion 23 is bent stepwise between the annular portion 21 and the lever portions 22.
  • the pivot ring 30 is positioned at an outer side in radial direction of the level difference at the fulcrum portions 22.
  • Each lever portion 22 includes two of the projections 22a and 22b extending outward in a radial direction at circumferentially off location from the fulcrum portion 23 to both sides of the fulcrum portion 23 on each lever portion 22.
  • Each of the two projections 22a and 22b engages with the pivot ring 30 for restraining the axial direction shifting of the pivot ring 30 at each fulcrum portion 23.
  • the diaphragm spring 20 pivots at the fulcrum portion 23, being supported by the pivot ring 30 at the fulcrum portions 23 and the projections 22a and 22b.
  • Transmission side faces of the lever portions at inner periphery portions 22 are in close contact with a clutch releasing mechanism that is movable in an axial direction (for example, a clutch release bearing).
  • the portion where the lever portions 22 and the clutch releasing mechanism contact becomes the point of effort for the diaphragm spring 20.
  • the diaphragm spring 20 pivots at the fulcrum portions 23 and moves the clutch pressure plate 40 in a direction to be removed from the point of action on the annular portion 21.
  • the pivot ring 30 is a ring shaped (inclusive of substantially ring shaped and C-ring shaped) member. A cross section of the pivot ring 30 is a circle.
  • the pivot ring 30 is restrained to the diaphragm spring 20 by clinching the clinching portions 13b on the multiple tab portions 13a formed on the clutch cover 10 at gap areas between the lever portions 22.
  • the pivot ring 30 pivotally supports the diaphragm spring 20 at the fulcrum portions 23 on the diaphragm spring 20.
  • the clutch pressure plate 40 is an annular member that presses the clutch disc to the flywheel.
  • the clutch pressure plate 40 includes the projecting portions 41 projecting in an axial direction toward the diaphragm spring 40. Vertices of the projecting portions 41 are in close contact (pressure contact) with points of effort on the annular portion 21 of the diaphragm spring 20.
  • the clutch pressure plate 40 is connected to the flywheel by means of a strap plate (a plate spring), and is allowed to shift its position in an axial direction in response to a deflection of the strap plate.
  • An example of assembling the clutch cover assembly according to the first embodiment is that after placing the pivot ring 30 on the diaphragm spring 20 in between the fulcrum portion 23 and the projections 22a, 22b, the pivot ring 30 attached to the diaphragm spring 20 is inserted to the clutch cover 10 at the outer circumference of the multiple tab portions 13a (which is not bent in the beginning), then the clinching portions 13b of the tab portions 13a are bent outwardly in a radial direction by applying pressing forces to the clinching portions 13b.
  • the clutch pressure plate 40 When the clutch is engaged (i.e., a condition in which a clutch pedal is not pressed) the clutch pressure plate 40 is being pressed to an engine side element (i.e., toward left in Fig. 2 ) by an elastic load at the annular portion 21 of the diaphragm spring 20. In this condition, a pressing force of the diaphragm spring 20 to the clutch pressure plate 40 is balanced with a reaction force of the diaphragm spring 20 to the pivot ring 30, which is in contact with the fulcrum portions 23 of the diaphragm spring 20.
  • the clutch cover assembly according to the first embodiment includes one pivot ring 30 for reducing a dimension in an axial direction and reducing a cost by including a small number of components.
  • the clutch cover assembly according to the first embodiment also reduces the dimension in an axial direction by positioning the annular portion 21 of the diaphragm spring 20 at the clutch pressure plate 40 side of the pivot ring 30. Further, the clutch cover assembly according to the first embodiment reduces the dimension in axial direction by positioning the annular portion 21 of the diaphragm spring 20 and the clinching portions 13b of the tab portions 13a on the clutch cover 10 next to each other on an axially perpendicular plane.
  • the clutch cover assembly according to a second embodiment is explained referring to Figs. 5 to 8 .
  • the clutch cover assembly according to the second embodiment is a variation of the clutch cover assembly according to the first embodiment.
  • the clutch cover assembly according to the second embodiment is similar to the clutch cover assembly according to the first embodiment in that the second embodiment includes one pivot ring 30, in that the annular portion 61 of the diaphragm spring 60 is positioned at the clutch pressure plate 40 side of the pivot ring 30, and in that the annular portion 61 of the diaphragm spring 60 and clinching portions 53b, 53c of the tab portions 53a on the clutch cover 50 are positioned next to each other on an axially perpendicular plane, however, methods to engage the clutch cover 50 and the diaphragm spring 60 with the pivot ring 30 are different.
  • the clutch cover 50 is an annular member.
  • the clutch cover 50 includes a cylinder portion 52 and an annular outer flange portion 51 that extend outward in a radial direction from one end of the cylinder portion 52, and the annular inner flange portion 53 that extends inward in radial direction from the other end of the cylinder portion 52.
  • the outer flange portion 51 includes multiple through hole portions 51a for a purpose of retaining the clutch cover 50 to a flywheel by fixing the clutch cover 50 and the flywheel together at predetermined positions by rivets, bolts or similar fixing means.
  • the inner flange portion 53 includes multiple tab portions 53a extending from predetermined positions of an inner periphery of the inner flange portion 53.
  • the tab portions 53a retain the pivot ring 30, which pivotally supports the diaphragm spring 60, to the clutch cover 50.
  • Each of the tab portions 53a when viewed in axial direction, is at a position that overlaps within a gap area between the lever portions 62 on the diaphragm spring 60.
  • Each tab portion 53a is bent at its midway portion to axial direction toward the clutch pressure plate 40 (in Fig. 6 ), and is bent at its end portion to outward in radial direction.
  • Each midway portion of the tab portion 53a bent to axial direction toward the clutch pressure plate 40 is positioned at an inner periphery side of the pivot ring 30 thus restraining the radial direction movement of the pivot ring 30.
  • each tab portion 53a which is bent outwardly in a radial direction becomes clinching portions 53b and 53c.
  • the clinching portions 53b and 53c on each tab portion 53a are positioned where each clinching portion 53b or 53c, when clinched, does not conflict with the projections 61a on the diaphragm spring 60.
  • clinching portions 53b or 53c are positioned at circumferentially off location to both sides (or one side) of the projection 61a.
  • Each clinching portion 53b or 53c that clinches around the pivot ring 30 restrains the radial direction movement of the pivot ring 30 by pressing the pivot ring 30 toward a root portion of each tab portion 53a.
  • one configuration of the clinching portions 53b and 53c is to form the clinching portions 53b and 53c to extend toward the opposite direction to the direction circumferentially positioned projections 61a extends to and receive the pivot ring 30 at the extended portions.
  • the diaphragm spring 60 is an annular elastic member that functions as a lever to provide pressure to the clutch pressure plate 40 (in Fig. 6 ) to make connection for the flywheel (i.e., provides pressure toward left in Fig. 6 ).
  • the diaphragm spring 60 includes the multiple lever portions 62 extending inwardly in a radial direction from an inner periphery of the annular portion 61.
  • the annular portion 61 is an annular member that functions as a coned disc spring. The annular portion 61 is slanted so that its outer periphery portion is positioned closer to the clutch pressure plate 40 (in Fig.
  • the outer periphery portion of the annular portion 61 is positioned leftward of its inner periphery portion in Fig. 6 ).
  • the outer periphery portion of the annular portion 61 is in close contact (pressure contact) with the projecting portions 41 (in Fig. 6 ), which are formed on the clutch pressure plate 40 (in Fig. 6 ), to become points of action for the diaphragm spring 60.
  • the annular portion 61 is positioned at the clutch pressure plate 40 side (in Fig. 6 ) of the pivot ring 30 (i.e., the annular portion 61 is positioned leftward of the pivot ring 30 in Fig. 6 ).
  • the annular portion 61 and the clinching portions 53b and 53c of the tab portion 53a are positioned next to each other on an axially perpendicular plane.
  • Each lever portion 62 positioned circumferentially next to each other on the diaphragm spring 20 is separated from each other.
  • Each lever portion 62 includes the fulcrum portion 63 at its root that serves as a fulcrum for the diaphragm spring 60.
  • the fulcrum portion 63 is bent stepwisely between the annular portion 61 and the lever portions 62.
  • the pivot ring 30 is positioned at an inner side in a radial direction of a step of the fulcrum portions 63.
  • the annular portion 61 includes the projections 61a extending inwardly in a radial direction at locations circumferentially away from the fulcrum portions 63 to both directions. Each of the projections 61a engages to the pivot ring 30 for restraining the axial direction shifting of the pivot ring 30 at each fulcrum portion 63. When viewed in an axial direction, the projections 61a are at positions that overlap with the tab portions 53a of the clutch cover 50. Each projection 61a is at a position that does not conflict with the clinching portions 53b and 53c of each tab portion 53 on the clutch cover 50, when the clinching portions 53b and 53c are clinched.
  • the diaphragm spring 60 pivots at the fulcrum portion 63, being supported by the pivot ring 30 at the fulcrum portions 63 and the projections 61a.
  • Transmission side faces of the lever portions 62 at inner periphery portions i.e., faces at right in Fig. 6
  • the portion where the lever portions 62 and the clutch releasing mechanism contact becomes the point of effort for the diaphragm spring 60.
  • the diaphragm spring 60 pivots at the fulcrum portion 63 and moves the clutch pressure plate 40 in a direction to be removed from the point of action on the annular portion 61.
  • the pivot ring 30 is a ring shaped (inclusive of substantially ring shaped and C-ring shaped) member. A cross section of the pivot ring 30 is a circle.
  • the pivot ring 30 is restrained to the diaphragm spring 60 by clinching the tab portions 53b and 53c on the multiple tab portions 53a formed on the clutch cover 50 at the gap areas between the lever portions 62.
  • the pivot ring 30 pivotally supports the diaphragm spring 60 at the fulcrum portions 63 on the diaphragm spring 60.
  • An example of assembling the clutch cover assembly according to the second embodiment is that after placing the pivot ring 30 on the diaphragm spring 60 in between the fulcrum portion 63 and the projections 61a, the pivot ring 30 attached to the diaphragm spring 60 is inserted to the clutch cover 50 at the outer circumference of multiple tab portions 53a (which is not bent in the beginning), then the clinching portions 53b and 53c of the tab portions 53a are bent to an outward direction in the radial direction by applying pressing forces to the clinching portions 53b and 53c.
  • the clutch pressure plate 40 When the clutch is engaged (i.e., a condition in which a clutch pedal is not pressed) the clutch pressure plate 40 is being pressed to an engine side element (i.e., toward left in Fig. 6 ) by an elastic load at the annular portion 61 of the diaphragm spring 60. In this condition, a pressing force of the diaphragm spring 60 to the clutch pressure plate 40 is balanced with a reaction force of the diaphragm spring 60 to the pivot ring 30, which is in contact with the projection 61a of the diaphragm spring 60.
  • the clutch cover assembly according to the second embodiment is similarly effective as the clutch cover assembly according to the first embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
EP20110176002 2010-09-14 2011-07-29 Ensemble formant couvercle d'embrayage Not-in-force EP2428694B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010205221A JP2012062913A (ja) 2010-09-14 2010-09-14 クラッチカバー組立体

Publications (3)

Publication Number Publication Date
EP2428694A2 true EP2428694A2 (fr) 2012-03-14
EP2428694A3 EP2428694A3 (fr) 2013-04-03
EP2428694B1 EP2428694B1 (fr) 2014-05-14

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ID=45219108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110176002 Not-in-force EP2428694B1 (fr) 2010-09-14 2011-07-29 Ensemble formant couvercle d'embrayage

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EP (1) EP2428694B1 (fr)
JP (1) JP2012062913A (fr)
CN (1) CN102401019B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2924310A4 (fr) * 2012-11-21 2016-07-20 Aisin Seiki Ensemble de couvercle d'embrayage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443367A (en) * 1973-07-25 1976-07-21 Automotive Prod Co Ltd Friction clutches
FR2390631A1 (fr) * 1977-05-10 1978-12-08 Dba Ensemble d'embrayage et embrayage comportant un tel ensemble
GB8301426D0 (en) * 1983-01-19 1983-02-23 Automotive Prod Plc Friction clutches
DE3513315A1 (de) * 1985-04-13 1986-10-16 Fichtel & Sachs Ag, 8720 Schweinfurt Membranfeder-kupplung mit einem stuetzring
JPH09250560A (ja) * 1996-03-14 1997-09-22 Exedy Corp クラッチカバー組立体
CN201425065Y (zh) * 2009-05-31 2010-03-17 芜湖大捷离合器有限公司 带有辅助膜片压紧的离合器盖总成

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2924310A4 (fr) * 2012-11-21 2016-07-20 Aisin Seiki Ensemble de couvercle d'embrayage

Also Published As

Publication number Publication date
CN102401019B (zh) 2016-06-08
EP2428694B1 (fr) 2014-05-14
CN102401019A (zh) 2012-04-04
JP2012062913A (ja) 2012-03-29
EP2428694A3 (fr) 2013-04-03

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